Buffing device



Oct. 1, 1929.

c. A. PETERS BUFFING DEVICE Filed March 26, 1928 WW 1T8. e nr n e r vt 0R5 4 C Patented Get. 1, 19229 BUFFING nnvicn Application filed March 26,1928. Serial No. 264,934.

My invention relates to bufiing devices and it relates more particularlyto bufling wheels used in manufacturing and repairing shoes. An objectof the invention is to provide a construction which renders it an easyand ,simple matter to renew the buffing material. I accomplishtheobjects of the invention by providing a split wheel for carrying thebuffing material, said wheel being rotatively mounted on a hub memberand a locking device being provided which holds the members of the wheeltogether when the wheel is turned in one direction around the hub andwhich permits the wheel members to separate when the wheel is turned inthe other direction around the hub.

The full objects and advantages of my invention will appear inconnection with the detailed description thereof, and the novel featuresof my inventive idea will be particularly pointed out in the claims.

In the accompanying drawings which illustrate a practical embodiment ofmy invention,-

Fig. 1 is a side elevational view of the device. Fig. 2 is a view insection on the line 22 of Fig. 1. Fig. 3 is a view in central section onthe line 33 of Fig. 5 showing the device in closed condition. Fig. 4: isa similar view showing the device in open condition. Fig. 5 is a view insection on the line 55 of ig. 3.

As shown in the drawings, I provide a hub member 10 which is adapted tobe secured to a shaft 12 in any suitable manner.

The hub 10 is provided with a central circumferential flange 14 which isof considerably less width than the body portion of the hub. A splitwheel consisting of two segmental members 16 and 18 is adapted tocooperate with the hub member, these seg1nental members each containingan interior circular groove 20 into which the flange 14 is adapted tofit rotatively. A pin 22 secured to the wheel member 16 extends througha concentric slot 24 in the flange 14 so that the wheel may have arotative movement on the hub which is determined by the length of theslot 24. Diametrically opposite the pin 22, a

pin 26 is secured to the wheel member 18 so closed condition;

as to cooperate with an open-ended'slot 28 which is eccentricallyarranged with relation to the center of the device. The wheel members 16and 18 are preferably hinged together at one side as by means of a hinge30. The periphery of the wheel is covered with a pad 82 of suitablematerial such as felt which is split at the side opposite the hinge 30while the split faces of the wheel members adjacent the split portion ofthe pad are providedwith sharp points 84c adapted to be received inrecesses 36 formed in the cooperating wheel member. The points 34 arerespectively adapted to secure the two ends of a strip 38 of bufing orabrasive material such as sand or emery paper which is wrapped aroundthe pad 32. The pin 26 and the outer wall of the groove 28 constitute alocking device for holding the wheel members together in their Theoperation and advantages of my invention will now be obvious. When thewheel is in open condition as shown in Fig. 4, a worn strip bufiingmaterial may be readily removed and replaced bya fresh strip. When thewheel member 18 is moved into engagement with the hub and the wheel isgiven a rotative movement on the hub in clockwise direction into theposition shown in Fig 3, the pin 26 rides in the eccentric slot 28 andthe two wheel members are securely held together. When the device is inuse, it 1s rotated by operation of the shaft 12 in counter- I clockwisedirection as viewed in Fig. 3 and indicated by the arrow A. When thematerial to be buffed is pressed against the butting Wheel, the tendencyis to retard the wheel with relation to the hub which causes a slightrotative movement relatively to the hub in the direction of the arrow B.The .90

result is that the" member 18 is drawn still more closely toward themember 16. l Vhen the shaft is not running, the wheel may be turned onthe hub into the position shown in Fig. 4 so that the buffing strip maybe re- ,95

newed.

I claim:

1. A bufiing device comprising a hub adapted to be secured to arotatable shaft, a peripheral flange on said hub, a pair of segmen talWheel members having interior grooves into which said flange fitsrotatively said flange having a concentric slot and an eccentric slot, apin carried by one. of said members, and passing through said concentricslot, a second pin carried by the other of said members, said second pinbeing adapted to engage in said eccentric slot When'the wheel is turnedin one direction around said hub and being released from said slot whenthe Wheel is turned in the other direction around said hub, and a stripof bufling material car'- ried on the perphery of said Wheel.

2. A bufling device comprising a hub adapted to be secured to arotatable shaft, a peripheral flange on said hub, a pair of segmentalWheel members having interior grooves into which said flange fitsrotatively, a hinge connection for said members at one side of theWheel, fastening devices for a strip of buffing material at the 0ppositeside of said wheel, said flange havinga concentric slot and an eccentricslot, a pin carried by one of said members and passing through saidconcentric slot, and a second'pin carried by the other of said members,said second pin being adapted to engage in said eccentric slot when thewheel 'is turned in one direction around said hub and being releasedfrom said slot when the wheel is turned in the other direction aroundsaid hub.

3. A buffing device comprising a hub adapted to be secured to arotatable shaft,

l a peripheral flange on said hub, a pair of segmental hinged wheelmembers having interior grooves into which said flange fits rotatively,said flange having an eccentric slot, a pin carriedby one of said Wheelmembers, said pin being adapted to engage in said eccentric slot whenthe wheel is turned in one direction around said hub and being releasedfrom said slot when the Wheel is'turned in'the other direction aroundsaid hub, and a strip of bu'fiing material carried on the perphery ofthe Wheel.

In testimony whereof I hereunto aflix my signature.

' CORNELIUS A. PETERS.

